How does an oil change reminder work?

Interesting. I've been reading a book on Ford Electronic Engine
Control EEC-IV ("eek four"). They call that WOT, wide open throttle.
It's significant in some tests, etc.
I've been getting a check engine light and the MIL (malfunction
indicator light) code is 332, insufficient EGR pressure. The crate
drives normally, so it's not a problem. Yet.
This morning I pulled the EEC unit out and opened it up, kind of neat
how they built it with a decent amount of thought towards making it
reliable. The PCB is coated with this soft thick plastic, so I would
have to do some work to get that off before I could do anything, if I
had to. Fortunately the VREF voltage is right on 5.00VDC so I know
that that's okay. Some of the sensors are supplied with it, and one I
measured looked like it was zero. But now I think I was not measuring
the right pins. In any case, I did some checks to one vacuum
solenoid, and it's ok, but the other sensor has eluded me, I've looked
for it and came up with nothing.
The book is a general book ($30 at barnes and noble) and doesn't get
into specific models, so I may have to get the ford factory manual to
find out what's going on. Meanwhile when I unplugged the EEC module,
I reset the memory, so if the check engine light comes back on, if it
comes back on, I'll just keep on looking for more info.

My wife's 97 Buick GenII 3800 just triggered the change oil light at 2600
miles since last change.
I intend to take over the changes now. Does this feature
automatically reset, or do you have to manually reset it?

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

If she does a lot of very short trip driving, you might do well to heed the
light and change the oil. The parameters it monitors to trigger the light
sound valid. You have to manually reset it, the method varies with make and
model.

Log in

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.